Hayashi Daisuke, Nakao Kazuya, Katayama Takeo, Kawaguchi Hitoshi
Opt Express. 2015 Apr 6;23(7):8357-64. doi: 10.1364/OE.23.008357.
We propose and evaluate an all-optical 2-bit header recognition and packet switching method using two 1.55-µm polarization bistable vertical-cavity surface-emitting lasers (VCSELs) and three optical switches. Polarization bistable VCSELs acted as flip-flop devices by using AND-gate operations of the header and set pulses, together with the reset pulses. Optical packets including 40-Gb/s non-return-to-zero pseudo-random bit-sequence payloads were successfully sent to one of four ports according to the state of two bits in the headers with a 4-bit 500-Mb/s return-to-zero format. The input pulse powers were 17.2 to 31.8 dB lower than the VCSEL output power. We also examined an extension of this method to multi-bit header recognition and packet switching.
我们提出并评估了一种全光2比特报头识别和分组交换方法，该方法使用两个1.55微米偏振双稳态垂直腔面发射激光器（VCSEL）和三个光开关。偏振双稳态VCSEL通过报头与置位脉冲以及复位脉冲的与门操作充当触发器设备。包含40Gb/s非归零伪随机比特序列净荷的光分组，根据报头中两位的状态，成功地以4比特500Mb/s归零格式发送到四个端口之一。输入脉冲功率比VCSEL输出功率低17.2至31.8dB。我们还研究了将该方法扩展到多比特报头识别和分组交换。
